Patent US3091669A successfully refreshed from Google Patents.
US3091669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting device for a magnetic transducer head
Assignee: Unisys Corp
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Filing: 1957-05-14
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Granted: 1963-05-28
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Expires: 1977-05-14
Abstract
No abstract record available.
Inventors
- 👤 Harold M Frederick
- 👤 Jr Isaac M Sheaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:29
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/58; G11B27/00; G11B27/10; G11B5/127; G11B5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
APPARATUS FOR RETRACTIBLY MOUNTING TRANSDUCER IN OPERATIVE ASSOCIATION WITH A DRUM TYPE STORAGE MEMBER COMPRISIGN, A DRUM-LIKE HOUSING ENCLOSING SAID STORAGE MEMBER IN CO-AXIAL RELATION THEREWITH, SAID HOUSING HAVING AN APERTURE THERETHROUGH AND AN ELONGATED CIRCUMFERENTIAL GROOVE ON ITS OUTER SURFACE, SAID GROOVE INTERSECTING SAID APERTURE AND HAVING CIRCUMFERENTIAL TRACK PORTIONS ON EACH SIDE THEREOF, A HEAD, AND MEANS ADJUSTABLY MOUNTING SAID HEAD ON SAID HOUSING WITH A PORTION EXTENDING THROUGH SAID APERTURE IN CLOSED ADJACENCY TO THE SURFACE OF SAID DRUM STORAGE MEMBER, SAID LAST MEANS COMPRISING A SUPPORT MEMBER HAVING AN ARCUATE FACE COMPLEMENTARY TO AND ENGAGING SAID TRACKS AND MOVABLE LONGITUDINALLY THEREON, MEANS PIVOTALLY MOUNTING SAID SUPPORT MEMBER ON SAID HOUSING FOR PROVIDING PIVOTAL MOVEMENT OF SAID HEAD INTO AND OUT OF OPERATIVE
Claim 2
Dependent Claim
126 words
APPARATUS FOR RETRACTIBLY MOUNTING TRANSDUCER IN OPERATIVE ASSOCIATION WITH A DRUM TYPE STORAGE MEMBER COMPRISIGN, A DRUM-LIKE HOUSING ENCLOSING SAID STORAGE MEMBER IN CO-AXIAL RELATION THEREWITH, SAID HOUSING HAVING AN APERTURE THERETHROUGH AND AN ELONGATED CIRCUMFERENTIAL GROOVE ON ITS OUTER SURFACE, SAID GROOVE INTERSECTING SAID APERTURE AND HAVING CIRCUMFERENTIAL TRACK PORTIONS ON EACH SIDE THEREOF, A HEAD, AND MEANS ADJUSTABLY MOUNTING SAID HEAD ON SAID HOUSING WITH A PORTION EXTENDING THROUGH SAID APERTURE IN CLOSED ADJACENCY TO THE SURFACE OF SAID DRUM STORAGE MEMBER, SAID LAST MEANS COMPRISING A SUPPORT MEMBER HAVING AN ARCUATE FACE COMPLEMENTARY TO AND ENGAGING SAID TRACKS AND MOVABLE LONGITUDINALLY THEREON, MEANS PIVOTALLY MOUNTING SAID SUPPORT MEMBER ON SAID HOUSING FOR PROVIDING PIVOTAL MOVEMENT OF SAID HEAD INTO AND OUT OF OPERATIVE
References Cited (Backward Citations)
US440817A
Cited
US1501878A
Cited
US2481392A
Cited
US2526358A
Cited
US2530584A
Cited
US2769037A
Cited
US2820688A
Cited
US2862064A
Cited
US2864892A
Cited
US2997360A
Cited
US2862067A
Cited
US2931691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |